docs: Document that i965 Gen6+ requires Kernel 3.6 or later

Cc: "9.2" mesa-stable@lists.freedesktop.org
Reviewed-by: Kenneth Graunke <kenneth@whitecape.org>
docs: Document UVD (2.2 and 3.0) video decoding support in mesa 9.2

Cc: "9.2" mesa-stable@lists.freedesktop.org
Reviewed-by: Alex Deucher <alexander.deucher@amd.com>
glsl: Fix NULL pointer dereferences when linking fails.

Commit 7cfefe6965d50 introduced a check for whether linked->Type equals
GL_GEOMETRY_SHADER.  However, linked may be NULL due to an earlier error
condition.

Since the entire function after the error path is (or should be) guarded
by linked != NULL checks, we may as well just return early and remove
the checks.

Fixes crashes in 9 Piglit tests.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
glsl: Disallow interpolation qualifiers on non-input/output variables.

Commit 2548092ad8015 switched the sense of interpolation qualifier
checks in order to permit them on geometry shader in/out variables.

In doing so, it accidentally allowed interpolation qualifiers to be
applied to ordinary variables and function parameters.

Fixes a regression in Piglit's local-smooth-01.frag.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
i965: Initialize the maximum number of GS threads on Haswell.

We'll need proper values for max_gs_threads when we eventually support
geometry shaders.  Also, we initialize it for every other platform.

Signed-off-by: Kenneth Graunke <kenneth@whitecape.org>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
mesa: Update comments to match newer specs.

Old GL 1.x specs used 'b' but newer specs use 'p'. The line immediately
above the second hunk also uses 'p'.
mesa: Use MIN3 instead of two MIN2s.
Makefile.am: Remove api_exec_es* from EXTRA_FILES.

These files were removed in commits a0102154 and a8ab7e33.

Reviewed-by: Andreas Boll <andreas.boll.dev@gmail.com>
llvmpipe: make the front-face behavior match the gallium spec

The spec says that front-face is true if the value is >0 and false
if it's <0. To make sure that we follow the spec, lets just
subtract 0.5 from our value (llvmpipe did 1 for frontface and 0
otherwise), which will get us a positive num for frontface and
negative for backface.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
tgsi: add ucmp to the list of opcodes

we forgot to add ucmp to the list of opcodes, so it was never
generated for ureg.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
tgsi: detect prim id and front face usage in fs

Adding code to detect the usage of prim id and front face
semantics in fragment shaders.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
draw/llvm: add some extra debugging output

when dumping shader outputs it's nice to have the integer
values of the outputs, in particular because some values
are integers.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
draw: use the vertex size

Instead of using the magical 4 use the above computed
vertex size. Doesn't change the behavior, just makes the code
a bit cleaner.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
draw: stop crashing with extra shader outputs

Draw sometimes injects extra shader outputs (aa points, lines or
front face), unfortunately most of the pipeline and llvm code
didn't handle them at all. It only worked if number of inputs
happened to be bigger or equal to the number of shader outputs
plus the extra injected outputs. In particular when running
the pipeline which depends on the vertex_id in the vertex_header
things were completely broken. The patch adjust the code to
correctly use the total number of shader outputs (the standard
ones plus the injected ones) to make it all stop crashing and
work.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
draw: inject frontface info into wireframe outputs

Draw module can decompose primitives into wireframe models, which
is a fancy word for 'lines', unfortunately that decomposition means
that we weren't able to preserve the original front-face info which
could be derived from the original primitives (lines don't have a
'face'). To fix it allow draw module to inject a fake face semantic
into outputs from which the backends can figure out the original
frontfacing info of the primitives.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
draw: make sure clipping works with injected outputs

clipping would drop the extra outputs because it always
used the number of standard vertex shader outputs, without
geometry shader or extra outputs. The commit makes sure
that clipping with geometry shaders which have more outputs
than the current vertex shader and with extra outputs correctly
propagates the entire vertex.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
llvmpipe: don't interpolate front face or prim id

The loop was iterating over all the fs inputs and setting them
to perspective interpolation, then after the loop we were
creating extra output slots with the correct interpolation. Instead
of injecting bogus extra outputs, just set the interpolation
on front face and prim id correctly when doing the initial scan
of fs inputs.

Signed-off-by: Zack Rusin <zackr@vmware.com>
Reviewed-by: Roland Scheidegger <sroland@vmware.com>
Reviewed-by: Jose Fonseca <jfonseca@vmware.com>
Reviewed-by: Brian Paul <brianp@vmware.com>
nv50: fix some h264 interlaced decoding on vp2

Some videos specify mb_adaptive_frame_field_flag instead of
field_pic_flag. This implies that the pic height needs to be halved, and
this field needs to be passed to the VP engine.

Cc: "9.2" mesa-stable@lists.freedesktop.org

Signed-off-by: Ilia Mirkin <imirkin@alum.mit.edu>
i965: init global state first in brw_workaround_depthstencil_alignment

In a future pass this will allow us to exit-early from this
routine to disable it for gen >= 7.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>
gen7 depth surface: calculate more specific surface type

This will be used in 3DSTATE_DEPTH_BUFFER in a later patch.

Note: Cube maps are treated as 2D arrays with 6 times as
many array elements as the cube map array would have.

Signed-off-by: Jordan Justen <jordan.l.justen@intel.com>
Reviewed-by: Paul Berry <stereotype441@gmail.com>